I have said in the past that we see what we are looking for. This is confirmation of that. "Our findings provide evidence that the stereotypes we hold can systematically alter the brain’s visual representation of a face, distorting what we see to be more in line with our biased expectations." Our expectations play a critical role in perception. That's why there is no such thing as 'theory-neutral data'. We need to be aware of the way our subjective perceptions in turn shape our expectations. "Men, and particularly black men, were initially perceived 'angry,' even when their faces were not objectively angry; and women were initially perceived 'happy,' even when their faces were not objectively happy."